using System.Net.NetworkInformation;
using System.Net;

public String GetIP(String website)
{
    
    
    String ipAddress = "";
    Ping p = new Ping();
    try
    {
    
    
        PingReply r = p.Send(website);
        if (r.Status == IPStatus.Success)
        {
    
    
            ipAddress = r.Address.ToString();
        }
    }
    catch (Exception)
    {
    
    
        throw;
    }
    return ipAddress;
}

// 例如返回 59.111.19.33
GetIP("music.163.com");